Dial Commands

The modem will go off hook, transmit the answer tone, and wait for a carrier from the remote modem.

This command is included for compatibility only and has no effect other than returning a result code.

Puts the modem into origination mode, allowing it to work as an automatic dialer for connection to another modem. The string n contains the telephone number and the following optional "dial modifiers".: The string n must be less than 45 characters excluding spaces, hyphens, and parenthesis, which can be used for clarity.

• 0-9 -- DTMF digits 0 to 9
• * -- The "star" digit (tone dialing only)
• # -- The "gate" digit (tone dialing only
• A-D -- DTMF digits A, B, C, D.
• J -- Perform MNP 10 link negotiation at 1200 bps (this call only)
• K -- Enable power level adjustment during MNP 10 link negotiation (for this call only).
• L -- Re-dial last number. The L must be immediately after the D with the following characters ignored.
• P -- Selects Pulse dialing. Only digits 0-9 can be entered in pulse dial mode.
• R -- Reverse dial mode. This command accepted but not acted upon.
• S=n -- Dial stored number. Dials the number stored in location n (0-3)
• T -- Select tone dialing. Any digit 0-9,*,#,A,B,C,D, etc. may be dialed.
• W -- Wait for dial tone. The modem waits for dial tone before processing the dial string.
• , -- Pause. Causes the modem to pause for the time specified by S-Register 8 before processing the next character in the dial string.
• ! -- Flash hook. This causes the modem to go on-hook for the time defined by the value of S-Register 29, and then return off-hook.
• @ -- Wait for silence. The modem will wait for five seconds of silence before dialing the remaining dial string.
• ; -- Return to idle state. Modem returns to command mode after dialing a number without disconnecting the call.
• & -- Wait for &T "bong" tone for credit card dialing before continuing with the remaining dial string.

This command provides switch hook control.

• H0 -- Instructs the modem to disconnect or hang-up.
• H1 -- Instructs the modem to go off-hook and enter command mode.

This command forces pulse dialing until the next T dial modifier or T command is received. Sets S-Register bit 5.

This command forces DTMF dialing until the next P dial modifier or P command is received. Clears S-Register bit 5.

This command determines whether the modem hangs up when it receives a long space signal (greater than 1.6 seconds) from the remote modem. If enabled, the modem will send a 4 second space signal to the remote modem before hanging up.

• Y0 -- Disable long space disconnect signaling.
• Y1 -- Enable long space disconnect signaling.